Attachment for collapsible tubes



J. s. TURNER. ATTACHMENT FOR COLLAPSIB LE TUBES.

APPLICATION FILED NOV-1.9 1920.

Patented Jan. 31, 1922.

A TTORNEYS ."rirs ii a JOHN s. tronnsn, or new BRUNSWICK, JERSEi- ATTACHMENT FOR COLLAPS1BI:E,TUBES.

Application filed Novembe'rlf), 1920. Serial N'of425,166. 7

To all whom it may concern. Be it known that I, JOHN S. TURNER, a

' citizen of the United States, and a resident My invention'relates to a combined closure" and spreader for collapsible tubes containing glue or other substances, and, the general object of the invention is-toprovide an attachment which at the same time will efiectively close the; tube and also constitute a spreader; or distributor. V 7

Reference is tobe had to the accompanying drawings forming a part of this specification, it'being understood that the drawings are merely illustrative of one example of the invention. e y

Figure 1 is a partly sectional side view of a. collapsible tube, showing the same before my attachment is inserted therein;

Figure 2 is a side elevation of the improved attachment;

Figure 3 is a partly sectional side elevation showing the attachment inserted in the tube;

Figure 4 is a front end View of the attachment.

The numeral 10 indicates a collapsible tube of known form having a top 11 formed with a thickened neck 12 having a bore 13, which bore in carrying out my invention is initially plain or unthreaded.

My improved attachment designated generally by the numeral 14 comprises an elon gatedshank and may be formed from a length of wire or rod, the outer end of the attachment being provided with a manipulating head 15, here shown as in the form of an integral loop on the shank. The shank is formed with a threaded zone 16 adjacent to the head 15 while the remainder of the shank forward of said zone is unthreaded and of less diameter than the threaded zone, the diameter of the shank at the said zone being enlarged by the production of the threads thereof. Ordinarily, the shank in front of the threaded zone 16 is left round in cross section but its cross sectional form obviously may be varied.

lVith the described attachment the shank is entered the neck 13,the unthreaded por- Specification of Letters'Patent. Patent ed against the front end of tion of the shank passingfreely through 'the' neckto the interior of the container.

The threaded zone, by the turningof the atta.ch merit, will cut its threaded way in the neck Jan-31, 5922;

12. The cutting of thethreads on the neck by the threaded zone 16 will increasethe diameter of the neck bore so that-the unthreaded portion of the shank may be re:

peatedly passed through the neck byfthe insertion and removal of the attachment without damaging the threads ,on the neck.-

In assembling the tube and-spreaderdevice and in cutting the internal threads in the neck 12 by the insertion and turning of the zone 16, an annular internal bead 12 is produced at the inner end of the bore '1'3pa'r-T tially due to the crowding of'the material of the neck at its inner end as the inner end I of the zone approaches said inner end of the;

neck. Said annular bead 12 forms a seat or resistance against which "the front end of the thread on the spreader engages, so that the one lnserting the" spreader 1s awarethat the spreader is inserted to the.

proper extent and thereby the undue turning of the spreader and the stripping of the threads on the neck are avoided. Also, the

annular bead 12 makes. a tight closure the thread on the spreader.

Advantageously, in use with container holding certain substances,a depression may be formed in the unthreaded portion of the shank, the depression being adapted to be filled with the substance of the container. The depression is made in the form of a longitudinal groove 1? extending preferably 1 to the forward end of the shank.

By the described device, the zone 16 when the closure is in place constitutes a threaded closure plug for the neck while the unthreaded portion of the shank forms an eflective s JIBELClGI the one shank functionin for both purposes, so that the insertion of the shank in the tube closes at the same time the neck of the container, and provides conveniently ing means.

A further important feature of the present invention is that the threaded zone 16 prevents the clogging of the neck in the accumulation of glue or like material within the neck. With an ordinary plain closure generally employed, the glue adheres to the accessible spreading or distribut d interior of the neck and prevents a tight fit of the closure making leakage possible and causing the contents of the tube adjacent to the neck to harden. With the threaded zone 16 any adhering glue is cut through by the threads.

I would state in conclusion that while the illustrated example constitutes a practical example of my invention, 1 do not limit myself strictly to the exact details herein illustrated, since manifestly the same can be considerably varied without departure from the spirit of the invention as described in the appended claims.

Having thus described my invention, 1 claim 1. As a new article of manufacture, a closure and spreader attachment for containers of the class described comprising an elongated shank having manipulating head at its outer end, said shank adjacent to the head being in the form of a screw plug constituting a threaded closure adapted to cut its way into and form a closure of, the neck of the container, the shank, forward of the threaded closure plug, being untlireaded and of less diameter than said plug to clear the internal threads of the neck and to constitute a spreader.

2. As a new article of manufacture, an attachment of the class described including a shank having a threaded zone adjacent to the outer end thereof, to constitute a screw plug for closing the neck of the container, said shank forward of the threaded plug being unthreaded and presenting a depression therein, into which the substance in the container may enter.

3. As a new article of manufacture, an attachment of the class described including a shank having a threaded zone adjacent to the outer end thereof, to constitute a screw plug for closing the neck of the container, said shank forward of the threaded plug being unthreaded and presenting a depression therein into which the substance of the container may enter, said depression being in the form of a longitudinal groove extending to the forward end of the shank.

4;. As a new article of manufacture, a tube of the class described presenting a neck, and a device constituting a closure and a spreader or distributor, said device presentinga shank having a threaded zone adjacent to the outer end thereof forming a screw-plug closure of the neck, said shank forward of said screw plug being elongated and unthreaded.

5. As a new article of manufacture, a tube of the class described having a neck and a device constituting a closure, and a spreader or distributor, said neck having an annular bead directed radially inward at the inner end of the neck, said spreader having a threaded zone forming a screw plug closure of the neck, the shank forward of the screw being of less diameter than the threaded zone and adapted to pass through said annular bead, the front end of the threaded zone being adapted to bear against said annular bead.

JOHN S. TURNER. 

